Does this fit a 1/2” drill?

I don't quite understand what you mean. Do you need a 1 / 2 inch M35 cobalt drill? Yes, we have 12.7mm, which is 1 / 2 inch in English.

is this good for 10mm rivet nuts?

I do not think so...since 10M rivet nuts have an od larger than the 10M screw it will facilitate. Here is how I know i.e. 1,2,3,4,5,6,7,8,9,10...etc. 10 is higher (larger diameter) than 8.9mm. You can search for a chart that will help you determine the size bit you need. It will be in the neighborhood of12mm I expect. Be sure to get someone to help you drill the holes if you can't hold the drill plumb.

Confused by your size chart. Is the dia. of your 10.5 bit 10.5 or 9.6-10.5?

Not sure what chart indicated 9.6-10.5 mm. The bit shown in the listing should cut a hole of 10.5 mm with little error. What gets confusing for some is when a drilled hole is to be threaded (tapped). A smaller hole is needed and requires a smaller drill bit size than the bolt size/thread that must screw into the threaded hole. Hope I did not confuse you more.

What is the length, how deep will it drill?

Total length 117mm, blade length 75mm

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LingGan 5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO

Product ID: 586228356

Details

Cutting diameter
5 Millimeters
Finish type
Titanium
Material
Cobalt Steel
Shank diameter
5 Millimeters
Shank type
Straight

💨2-Flute Spiral Design - Fast Chip Removal & Cooler Drilling

🔥Titanium Coating - Enhanced Durability & Heat Resistance

⚙️M35 5% Cobalt Steel - Rockwell Hardness 65+

109.96 DT

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Description

⚡ Drill Like a Pro: Cut Hard Metals with Lightning Speed and Precision!

PRECISION CUTTING EDGE - Fully ground double cutting edges with a 135° point angle ensure smooth, accurate holes every time.
COOLER FASTER DRILLING - 2-flute spiral design efficiently clears chips, reducing friction and heat for a chatter-free, high-speed experience.
UNIVERSAL COMPATIBILITY - Straight shank fits standard drill chucks securely, perfect for professional-grade metalworking applications.
RUST RESISTANT TITANIUM FINISH - Yellow titanium coating prevents oxidation, maintaining sharpness and aesthetic appeal over time.
UNMATCHED HARDNESS LONGEVITY - M35 cobalt alloy delivers up to 10x longer life than standard HSS bits, powering through tough metals effortlessly.

The LingGan 5mm M35 Cobalt Steel Twist Drill Bit set features premium 5% cobalt alloy with titanium coating, delivering exceptional hardness (Rockwell 65+), heat resistance, and durability. Its 2-flute spiral design ensures rapid chip evacuation and cooler drilling, while the 135° point angle and straight shank guarantee precise, stable performance on hard metals like stainless steel and cast iron. Ideal for professionals demanding longevity and efficiency in metalworking.

Reviews

User

Decent quality steel drill bit

Needed to make a tight 10mm hole in a collar I was machining out of aluminum. This bit worked pretty well. I only used it for the final cut though, so just removing a few thousandths of material. Worked out well though and no damage to the cutting edge or flutes. My hole diameter came out to within .002 inches of 10mm. If you need a metric drill bit for a tight hole, this would work.

31.08.2026

User

Buen producto

Buen producto. Recomendado.

9.05.2025

User

Seems high quality

very sharp & feels quality bit.

8.07.2023

User

Buen producto

9.05.2025

User

nice to have

very sharp

13.01.2026

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109.96 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Asin	B08P6V4376
Best Sellers Rank	#240 in Power Drill Bit Sets
Date First Available	21 March 2021
Item Model Number	20-20-11-27-12-55
Manufacturer	LingGan
Product Dimensions	8.6 x 0.5 x 0.5 cm; 20 g

LingGan 5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO

Details

Details

Description

Specifications

Reviews

Common Questions